P R I N T I N G_T E R M S

Bitmapped Image
A single channel image with one bit of colour information - colours display in black and white.

Digital Printing
Printing process that sends data or pages direct from the computer through a raster image processor then to a colour printer for final output.

DPI
Dots Per Inch is a measure of the resolution of a screen image or printed page.

Duotone
A term for a two-colour halftone reproduction from a one-colour photograph. (the E-Print 1000+ digital press will use four colours to simulate the duotone.)

Duplex Printing
Perfecting. A printing process that allows the press to print both sides of the paper at one time through the press.

Electroink
Liquid ink is used in the E-Print 1000+ which can be changed to produce high solution and high quality colour images, higher edge definition and requires no drying time. Dots have no dot gain as in conventional printing where the “ink” is not wet therefore it does not spread. This electroink bonds to the paper with minimum show through, paper curl and shrinkage.

Electronic Collation
The process in which the press can print a book in a aginated order.

Encapsulated Postscript File - EPS - (EPSF)
An alternative picture file format that allows Post script data to be stored and edited and is easy to transfer between Macintosh, MS-DOS and other systems.

Fill
To paint a selected area with a grey shade or pattern.

Four Colour Process
A method of reproducing a broad range of colours in print by using tints of cyan, magenta, yellow and black otherwise known as CMYK colouring.


Full Bleed Pages
When a page is printed past the desired final size, so as to allow for cropping.

Halftone
A Method of breaking a continuous tone image (like a photograph) into a pattern of dots, which can be in various shapes. Each row of dots is referred to as a line. A course halftone has 100 lines per inch (lpi) or less, and a fine screen has more than 100 lines.

HDI - High Definition Imaging
Reflects that the Indigo can print at a 200 line screen and that the files in question must be prepaired to handle such printing.

Imposition
The process of arranging the pages of a publication on a press sheet so that when the sheets are printed and folded for binding the pages will be in the proper order.

JPEG
An image format commonly used to display photographs and other continuous-tone images. It is most commonly used in HTML documents for the Web and other online services, because of its higher level of compression.

LPI
Lines Per Inch - usually referring to a halftone.

Personalization
Variable data printing, where fixed data is combined with variable data during the process.

PIP (Photo Imaging Plate)
Imaging head, which acts as a printing plate to hold the image.

PMS Colours
The Pantone Matching System is an international printing, publishing and packaging colour language providing an accurate method for the selection, presentation, specification, communication, reproduction, matching and control of colour.

Raster Image Processor (RIP)
This is used in the digital printing process. It is the computerized process that results in an electronic bit map which indicates every spot on a page in preparation for an actual printout.

RGB colour process
Stands for Red, Green, Blue (the additive primary colours) Colours are selected from a blending of these three colours.

Rich Black
A black that uses all four process colours (CMYK). An example of a rich black is 30% Cyan,
30% Magenta, 30% Yellow and 100% blacK.

Ripping Time
The time it takes to send a document through the computerised process (Raster Image Processor) which prepares a page for an actual print-out.

TIFF (Tagged Image File document)
File format for images being exchanged between applications (usually scans).

Truematch Colour System
True match is a 4-colour selection system of over 2000 colours, all achieveable in 4 colour procedd with a standard set of SWOP inks.

 

 

 

 

 

 

 

 

 

 

 


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